Bay and Bow Windows

Maximize natural light without compromising on performance with customizable bay and bow windows.

Bay and Bow Windows

Maximize natural light without compromising on performance with customizable bay and bow windows.

ENERGY STAR Rated Bay and Bow Windows

A&G’’s Bow and Bay Windows feature the ENERGY STAR emblem, which is the gold standard for energy efficiency rating. They are made from a 100% lead-free uPVC compound and feature a unique multi-chamber construction.

What Are Bay and Bow Windows?

Experience timeless elegance with the addition of bay and bow windows, enhancing any home’s charm. These uniquely configured windows create an illusion of spaciousness, flooding rooms with natural light while allowing for adjustable ventilation. Although both extend beyond the house frame, each has distinct characteristics.

At A&G Windows and Doors, we offer bay and bow windows in a diverse range of colors, sizes, and configurations. Our experts custom-build each window to perfectly fit your home, including special features like window grills or custom hardware. With our top-rated products and window installation services, we ensure 100% customer satisfaction.

For a complimentary quote on bay and bow windows and installation services, contact A&G Windows and Doors today. Discover the beauty and functionality these windows can bring to your home.

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Bay Windows

Bay windows are a distinctive window style featuring three openings with sharp angles between them. These windows often extend further out from the house compared to bow windows, creating extra space that many homeowners utilize to create a cozy sitting area. Typically, the center window is fixed, while the side windows may be fixed or operational. Some bay windows have smaller end frames compared to the center one, adding a unique touch to their aesthetic. Embrace the charm and versatility of bay windows in your home.

Bow Windows

Bow windows offer a distinct design with 4 to 5 window openings, gracefully connected in a subtle and sweeping curve, setting them apart from the sharp angles of bay windows. One of the major benefits of bow windows is the flexibility in choosing any configuration of fixed or operational window frames, allowing you to create the perfect look for your space. Enjoy the versatility and elegance that bow windows bring to your home.


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Benefits of A&G Bay and Bow Windows

Bay Windows are three single windows joined together in any angle between 15ºto 90º (usually 30º and 45º) to create a window protruding from the wall surface. In most cases, Bays are made from three windows consisting of a large picture in the center flanked by two smaller windows on the side, which can be stationary or operating casement windows. Bow Windows are those with more than 3 parts. Upgrade your home with the best in the industry.

Energy Efficient

Our windows feature a unique multi-chamber design, leading to outstanding energy efficiency. Keep your home comfortable while reducing energy costs.


Enjoy more leisure time with A&G’s low maintenance vinyl windows. Spend less effort on upkeep and more on the things you love.


Transform your home’s appearance with stylish vinyl windows available in various shapes, styles, and sizes. Instantly elevate your curb appeal.


Our vinyl windows are built to last, with exceptional durability and resistance to weather, cracking, and impact damage. Trust in their longevity.


Find the perfect window for your style and budget with our wide selection of price points and flexible financing options. Achieve quality without breaking the bank.

Ready to get started on your project?

A&G Windows and Doors is the leading supplier of awning windows in Toronto, Mississauga, Brampton, Vaughan, Markham, Etobicoke and the rest of Ontario. Trust us for your awning window replacement, along with our expert installation services.

Contact A&G Windows and Doors now to get a complimentary quote for awning windows for your home.

A&G Bow and Bay Window Warranty

A&G products are backed by some of the strongest warranties in the business.

Lifetime Warranty

On Solid Beige and White Windows, Patio Door Frames and Sashes

15 Year Warranty

On Factory Painted Vinyl Surfaces

Lifetime Warranty

On Cardinal Glass and Thermo-Seals

Lifetime Warranty

On Windows Hardware and 5-Year Warranty on Patio Door Hardware

Frequently Asked Questions

Since replacing my windows, I'm noticing more condensation than before at the bottom of the inside pane. How is this possible?

Condensation is appearing on your windows because they are better insulated! Water vapor occurs naturally in your home. It is trapped indoors because when your windows are closed, they offer a perfect seal. When the vapor comes into contact with a cold surface (e.g. mirrors, windows), it condenses into a liquid. The more your home is insulated, the more you must ensure proper and adequate ventilation.

What is Low-E Glass?

Low Emissive or “Low-E” glass has a special thin-film metallic or oxide coating on its interior surface, which allows the passage of short-wave solar energy (light) but prevents the passage of long-wave energy (heat) from the sun or heating systems through the glass. Low-E glass thus allows light to enter while also providing thermal insulation. This type of glass cuts the loss of heat during the winter and cuts the absorption of heat during the summer by reflecting the heat back to its source, thus providing year-round savings by lowering utility bills. Low-E glass also selectively filters the sun’s energy, blocking up to 84% of the sun’s ultraviolet rays in the summer, thereby reducing the degree of fading of upholstery, carpet and drapes. Low E also reduces heating costs reflecting room side heat back into the room resulting in a lower winter U-value.

What is argon gas and why is it used with Low-E glass?

Argon is a safe, odourless, colourless, non-toxic, non-flammable inert gas commonly used in place of air between the glass panes of an insulated Low-E glass unit. Argon’s heat conductivity is lower than that of air, and thus it is a better insulator and contributes to a lower U-factor. Argon is not an effective solar performer by itself; that is why it is only used in conjunction with Low-E glass.

How can I tell if I need new windows?
  • Difficult to open or close
  • Air leaking through or around the window
  • Excessive condensation or icing on the inside of the window panes
  • Windows rattle in the wind
  • Paint chipping or peeling
  • House is always too cold in winter – or too hot in summer
Will replacing my old windows really cut down on my heating bills?

Yes! Windows are one of the most important aspects of regulating home temperatures. Most windows in older homes were designed when energy was cheap, and new energy-efficient materials were unknown. Today’s newer energy-efficient windows are designed with overall thermal efficiency in mind; keeping the heat in and the cold out. Typically, an older home can lose up to 50 percent of its energy heat through leaky, drafty windows and doors.

Are new windows a bad investment if I plan on selling my home?

No! In fact, not only will new windows make your home more energy efficient and visually appealing, but they will increase the overall value of your home.


What is the difference between "retrofit" and "full replacement"?

Retrofit means leaving the original (old) window frames in and installing the new vinyl frames within the existing. Full replacement means removing the existing (old) window frames.

What is a thermal breakage?

Like every other material, glass expands (and contracts) when it experiences temperature variations. This expansion tends to be greater at the center of the glass than at the sides, which applies pressure to the glass. In most cases, this pressure is absorbed by the glass and the design of the window. However, the glass may break; this is referred to as thermal breakage.
In general, thermal breakage is not covered by the warranty because it does not mean that your product is faulty. This phenomenon is quite unpredictable, so manufacturers cannot be held responsible.

Other Window Styles

Casement Windows

Improve your view and increase air circulation with elegant & energy-efficient casement windows.

Picture Windows

Enjoy expansive views with elegant and energy-efficient picture windows.

Hung Windows

Sophisticated styling expectations while providing maximum flexibility in ventilation options.

Tilt and Turn Windows

The Best in European Design Tailored to North American building specifications.

Bay and Bow Window Installation

The quality of window installation significantly impacts the performance and longevity of your vinyl bay and bow windows. At A&G Windows and Doors, we employ trained and professional window installation specialists to provide exceptional bay and bow window installations. We offer two types of installation services for vinyl bow and bay windows:

Retrofit Installation

Retrofitting your home with vinyl windows allows you to upgrade your windows for improved performance and energy efficiency without needing a full-frame replacement.

  • It involves removing and replacing the window sash.
  • The existing window frame and trim on your home’s interior and exterior remain intact.
  • A faster and more cost-effective process compared to full-frame replacement.
  • Recommended if the existing frame is in good condition and well-insulated.
  • Allows you to upgrade window glazing for optimized performance.

Full Frame Replacement

For a more thorough option that offers greater efficiency and overall window performance, consider full frame replacement.

  • Involves complete removal of the old window down to the house framing.
  • After installation, the exterior is finished with caulking or aluminum flashing.
  • Allows for upgrades to the interior trim and window jambs.
  • Ensures optimal energy efficiency and thermal performance.

About A&G Windows & Doors

A&G Windows and Doors is a proudly Canadian-owned company, specializing in crafting unique and custom vinyl windows. Our dedicated team of window specialists is eager to collaborate with you in discovering the ideal custom windows that perfectly complement your home, be it a new construction or a renovation project.

We prioritize understanding your preferences and requirements, guiding you through the available window options, and assisting you in selecting the right size, type, and finishing touches for your new A&G custom vinyl windows. We are committed to delivering windows that surpass your expectations and enhance the beauty and functionality of your home.


Come meet with us in person for a more detailed overview of our products and services.